Analysis of diffusion in polymers by forward recoil spectrometry
- 1 November 1984
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 45 (9) , 957-959
- https://doi.org/10.1063/1.95456
Abstract
We demonstrate that an ion beamanalysis method that detects the energies of forward recoiling deuterons can be used to measure concentration profiles and tracer diffusion coefficients D* of a deuterated polymer (d‐polystyrene) diffusing into its hydrogenated analog. The D*’s decrease as M − 2 as predicted by the reptation theory of polymerdiffusion and agree in magnitude with both the theory and marker displacement measurements of D* in the same system.Keywords
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